# Sound Amplifier + vs Hear Through Walls

The clearest difference is ads: Hear Through Walls at none against Sound Amplifier +'s shown. Hear Through Walls also leads on rating (4.4 vs 4.1) and ratings volume (59 vs 15). Sound Amplifier +'s advantage is update cadence (every 4 days vs every 4 weeks) and monetization model (ad-supported vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hear Through Walls holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 15 and 59 respectively.

Sound Amplifier + ships an update every 4 days, Hear Through Walls every 4 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Sound Amplifier + | Hear Through Walls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/sound-amplifier-plus/id6782403208/reviews) | **[4.4 (59 ratings)](https://appshunter.io/ios/app/hear-through-walls/id6791780146/reviews)** |
| Number of ratings | 15 | **59** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 4 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 88 MB | 6 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [heekyung moon](https://appshunter.io/developer/6779193748) | [Ronald Lumor](https://appshunter.io/developer/1874119930) |

## What reviewers say

### Sound Amplifier +

[App page](https://appshunter.io/ios/app/sound-amplifier-plus/id6782403208)

Enhance your hearing in everyday situations. This tool uses your phone's microphone to amplify nearby sounds and deliver them to your earphones in real time. Adjust sound with an equalizer, reduce background noise, and protect your hearing with a volume limiter.

**Highlights:** Live audio amplification, 3-band equalizer with presets, Speech boost and noise reduction, Left/right balance control, Safe-volume limiter, Offline functionality

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Hear Through Walls

[App page](https://appshunter.io/ios/app/hear-through-walls/id6791780146)

This app transforms your iPhone into a live hearing amplifier and remote microphone. It allows you to listen to sounds from another room or through walls by streaming audio from your device's microphone to connected Bluetooth earbuds.

**Highlights:** Live hearing amplification, Remote microphone functionality, Listen through walls, Audio baby monitoring, TV listening device, Bluetooth earbud integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sound Amplifier + free?

Sound Amplifier + is free to download, with no in-app purchases.

### Is Hear Through Walls free?

Hear Through Walls is free to download, with no in-app purchases.

### Which has better reviews, Sound Amplifier + or Hear Through Walls?

Hear Through Walls is rated higher. Sound Amplifier + averages 4.1 out of 5 from 15 ratings, while Hear Through Walls averages 4.4 from 59 ratings.

### Do Sound Amplifier + or Hear Through Walls have ads?

Sound Amplifier + shows ads; Hear Through Walls does not.

### Which is updated more often, Sound Amplifier + or Hear Through Walls?

Sound Amplifier + ships an update every 4 days, and Hear Through Walls every 4 weeks. Most recently, Sound Amplifier + was updated on November 5, 2026 and Hear Through Walls on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*